One of the S&P 500’s big losers for Monday December 28 was Diamond Offshore Drilling Inc. (DO). The company’s stock fell 4.94% to $20.98 on volume of
1.33 million shares.

The stock opened the day at 21.66 and traded between a low of $20.95 and a high of $21.66. The stock finished the day down $1.09 per share. Diamond Offshore Drilling Inc. has an average
daily volume of 3.01 million and a total float of 137.16 million shares. The 50-day SMA for Diamond Offshore Drilling Inc. is $21.42 and its 200-day SMA is $24.57.
The high for the stock over the last 52 weeks is $39.42 and the low is $16.51.

Diamond Offshore Drilling Inc is a global offshore oil and gas drilling contractor. Its fleet offers a range of services worldwide in various markets, including the deep water, harsh environment, conventional semisubmersible and jack-up markets.

Diamond Offshore Drilling Inc. is centered in Houston, TX, and has 5,200 employees. Today’s trading day leaves the company with a market cap of $2.88 billion. The company has a P/S ratio of n/a, P/B ratio of 0.66, and a -2.6.

The S&P 500 represents the industry standard for large-cap indices. While the Dow Jones Industrial Average (DJIA) may be the most visible stock market index in the country, the S&P 500 has long been
relied on by industry insiders and fund managers as the more reliable gauge of portfolio performance.

While the DJIA is price-weighted and only includes 30 stocks, the S&P 500 uses a weighting system that factors in market cap and the size of a company’s free float while including some 500 stocks
for a more comprehensive look at the broader markets’ performance. Its performance is far more representative of the large- and mega-cap stocks for any period of time.

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